NAME
Test::FailWarnings - Add test failures if warnings are caught
VERSION
version 0.006
SYNOPSIS
Test file:
use strict;
use warnings;
use Test::More;
use Test::FailWarnings;
ok( 1, "first test" );
ok( 1 + "lkadjaks", "add non-numeric" );
done_testing;
Output:
ok 1 - first test
not ok 2 - Caught warning
# Failed test 'Caught warning'
# at t/bin/main-warn.pl line 7.
# Warning was 'Argument "lkadjaks" isn't numeric in addition (+) at t/bin/main-warn.pl line 7.'
ok 3 - add non-numeric
1..3
# Looks like you failed 1 test of 3.
DESCRIPTION
This module hooks $SIG{__WARN__} and converts warnings to Test::More's
"fail()" calls. It is designed to be used with "done_testing", when you
don't need to know the test count in advance.
Just as with Test::NoWarnings, this does not catch warnings if other
things localize $SIG{__WARN__}, as this is designed to catch *unhandled*
warnings.
USAGE
Overriding $SIG{__WARN__}
On "import", $SIG{__WARN__} is replaced with
"Test::FailWarnings::handler".
use Test::FailWarnings; # global
If you don't want global replacement, require the module instead and
localize in whatever scope you want.
require Test::FailWarnings;
{
local $SIG{__WARN__} = \&Test::FailWarnings::handler;
# ... warnings will issue fail() here
}
When the handler reports on the source of the warning, it will look past
any calling packages starting with "Carp" or "warnings" to try to detect
the real origin of the warning.
Allowing warnings from dependencies
If you want to ignore failures from outside your own code, you can set
$Test::FailWarnings::ALLOW_DEPS to a true value. You can do that on the
"use" line with "-allow_deps".
use Test::FailWarnings -allow_deps => 1;
When true, warnings will only be thrown if they appear to originate from
a filename matching "qr/^(?:t|xt|lib|blib)/"
Allowing warnings from specific modules
If you want to white-list specific modules only, you can add their
package names to @Test::NoWarnings::ALLOW_FROM. You can do that on the
"use" line with "-allow_from".
use Test::FailWarnings -allow_from => [ qw/Annoying::Module/ ];
SEE ALSO
* Test::NoWarnings -- catches warnings and reports in an "END" block.
Not (yet) friendly with "done_testing".
* Test::Warnings -- a replacement for Test::NoWarnings that works with
done_testing
* Test::Warn -- test for warnings without triggering failures from
this modules
SUPPORT
Bugs / Feature Requests
Please report any bugs or feature requests through the issue tracker at
. You will be
notified automatically of any progress on your issue.
Source Code
This is open source software. The code repository is available for
public review and contribution under the terms of the license.
git clone git://github.com/dagolden/test-failwarnings.git
AUTHOR
David Golden
COPYRIGHT AND LICENSE
This software is Copyright (c) 2013 by David Golden.
This is free software, licensed under:
The Apache License, Version 2.0, January 2004